CN103384856A - Magnetic resonator for a mechanical timepiece - Google Patents
Magnetic resonator for a mechanical timepiece Download PDFInfo
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- CN103384856A CN103384856A CN2011800592812A CN201180059281A CN103384856A CN 103384856 A CN103384856 A CN 103384856A CN 2011800592812 A CN2011800592812 A CN 2011800592812A CN 201180059281 A CN201180059281 A CN 201180059281A CN 103384856 A CN103384856 A CN 103384856A
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- tuning fork
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005285 magnetism related processes and functions Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
- G04C5/005—Magnetic or electromagnetic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/15—Intermittent grip type mechanical movement
- Y10T74/1502—Escapement
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Electric Clocks (AREA)
Abstract
The present invention relates to a magnetic resonator for a timepiece, comprising a diapason-type oscillator (1) having first and second U-shaped arms (2, 3), at least one of which has a first permanent magnet (4, 5) defining a first magnetic field, an escape wheel (6) to be arranged so as to engage with a finishing gears so as to enable said escape wheel to be driven by an energy source of the timepiece and, located sufficiently near the first permanent magnet so as to be exposed to the influence of the first magnetic field. In particular, the escape wheel (6) is to be free and have at least two permanent magnets (61 to 66), preferably at least four, which are arranged such that the vibrations of the arm of the diapason (1) control the rotational speed of the escape wheel, and are periodically propagated by means of the magnetic interaction between the first permanent magnet (4, 5) of the diapason and the permanent magnets (61 to 66) of the escape wheel in order to define a free escapement.
Description
Technical field
The present invention relates to a kind of magnetic resonators for mechanical watch, be particularly useful for wrist-watch.
More accurately, the present invention relates to a kind of like this magnetic resonators, it comprises:
The oscillator of tuning-fork-type, it has the first and second arms that basically take the shape of the letter U and arrange, and at least one arm supports at least one first permanent magnet that limits the first magnetic field,
Escape wheel, it is designed to be arranged as with the first moving body of the gear train of clockwork and is meshed, and drive to allow its power source by clock, and the scope that is positioned at the first permanent magnet is to stand the impact in the first magnetic field.
Oscillator namely about 10 to 50 times of conventional hair-spring balance, makes it have a great attraction in clock and watch are used such as the high quality factor of tuning fork.
And, the invention still further relates to a kind of clock that is equipped with the watch and clock movement of this resonator and is equipped with this watch and clock movement, this clock is especially but not exclusively refer to Wristwatch-type.
In the case, " permanent magnet " should not break away from the element that is interpreted as the generation permanent magnetic field under content of the present invention, and no matter its shape how, that is to say, its can by be fixed on solid block and stood to have a part of material that the purpose of required magnetic processes, by the part of installing or even by sedimentary deposit, formed by the magnetic material that is fit to.
Background technology
Disclose in prior art and comprised that much tuning fork is as the clock and watch equipment of oscillator.
As example, Max Hetzel relates to using tuning fork as the origin of the patent of invention of oscillator in a large number, and this has caused the Accutron(registered trademark of being sold by Bulova Swiss SA) production of wrist-watch.
Yet the Accutron wrist-watch comprises electro coupled oscillator, because each arm of corresponding tuning fork supports and the permanent magnet that interrelates with electromagnet that is fixedly installed on watch frame.The operation of each electromagnet is subordinated to the vibration of tuning fork by means of its magnet that supports, keep so that the periodic magnetic pulse of the vibration of tuning fork by electromagnet is passed to permanent magnet.An arm of tuning fork activates ratchet, the moving body that makes its watch gear that can rotate wrist-watch be.
For example, be derived from the patent US2 of nineteen fifty-seven application, 971,323 have described a kind of like this mechanism, yet it can not be suitable for producing pure mechanical watch (that is to say and there is no electronic circuit).Particularly, with regard to market, in fact need to be for known clock the pure mechanical watch that improves of work accuracy.
Should illustrate, the Accutron wrist-watch is still sold by Bulova Swiss SA at present.
The patent CH594201 that is derived from application in 1972 has described a kind of resonator system of double oscillator.Wherein utilize frequency stability that the tuning fork vibration brings by magnetic interaction with the vibration of the escapement of stablize conventional shape, so had the low quality factor of comparing with tuning fork.For this reason, on the one hand, the arm of tuning fork, and on the other hand, escapement, support arrangement is permanent magnet interact with each other.The corresponding interaction makes the vibration that can keep tuning fork, can stablize again the oscillation frequency of escapement.
Yet although this is not clearly illustrating in this patent, clearly, this mechanism must be bonded to mechanical escapement and change one-way movement into the periodic swinging with escapement, makes it can drive the moving body of wrist-watch gear train.Thereby, be likely that escapement is bonded to be arranged as the conventional mechanical escapement of keeping vibration.Thereby the mechanism of describing in the document makes the frequency stability that can improve the escapement vibration, but this is to compare under the conventional mechanism complicacy with single oscillator and the cost that space requirement enlarges markedly to carry out.And the high quality factor of tuning fork only partly uses in recommending solution, because be finally that escapement is controlled the motion of watch gear system to be similar to the mode of using in conventional system.
Also disclosed the replacement scheme that is more suitable in the peculiar space constraint of wrist-watch structure.Particularly, be derived from the patent US3 of application in 1962,208,287 have described a kind of resonator, and it comprises the tuning fork that is bonded to escape wheel via magnetic interaction.More accurately, tuning fork supports and the interactional permanent magnet of escape wheel, and escape wheel is made by permeability magnetic material.Linking to the escape wheel motion can be power source machinery or that take the motor form, comprises hole on its thickness simultaneously, so that it forms the variable reluctance magnetic circuit relevant to the magnet that is supported by tuning fork when rotated.
Thereby significantly the permanent interaction of intensity betides between tuning fork and escape wheel, and this can be defined as magnetic padlock, and therefore this structure is comprised of comfortless escapement.Provide power to consist of significant destruction source to keep its vibration (even it is very weak) and implement constantly and to see from the tautochronism angle of these vibrations from escape wheel to tuning fork.Similarly, escape wheel is implemented constantly by the guiding that tuning fork carries out.
Thereby the interactional class types that is used for this structure is similar to from the disadvantageous contact of operation accuracy angle.
To be noted that a large amount of patents cover the technical scheme based on the magnetic resistance principle.Can cited application day date back the patent GB660 of 1948 obviously, 581, the applying date dates back the patent GB838 of nineteen fifty-five, 430 or or even the applying date date back the patent US2 of 1949,571,085.
Summary of the invention
Fundamental purpose of the present invention is by advising a kind ofly having being used for mechanical watch, being particularly useful for the resonator of watch of high quality factor and high tautochronism, alleviating the shortcoming of the known tuning fork resonator of prior art.
So, the present invention relates more specifically to a kind of resonator of the above-mentioned type, it is characterized in that escape wheel is freely and supports at least two, at least four permanent magnets preferably, permanent magnet is arranged so that the vibration of the arm of tuning fork controls the rotational speed of escape wheel on the one hand, and periodically keeps to limit free escapement by the magnetic interaction between the permanent magnet of the first permanent magnet of tuning fork and escape wheel on the other hand.
Due to these characteristics, resonator according to the present invention provides the complete benefit of the high quality factor of tuning fork, that is to say, not the character of the escapement of intrinsic these benefits of weakening as the known mechanisms of prior art.
In fact, the interactional character of using between tuning fork and escape wheel and the possibility of regulating according to demand the magnetic of the permanent magnet that uses, make the operation that to optimize according to resonator of the present invention, the arm that obviously makes tuning fork applies control to the rotational speed of escape wheel by its vibration, and the latter obtains the amount of power that is enough to keep its vibration under fabulous tautochronism simultaneously.
This magnetic interaction that is positioned the permanent magnet on escape wheel and is positioned between permanent magnet on one of the arm of tuning fork has low-down amplitude, and has the very short duration.It only is placed as magnet with tuning fork at a permanent magnet of escape wheel and gets involved when relative.This interaction is only magnetic, and these two are placed as leaving space between aspectant permanent magnet.The magnet arrangement of escape wheel makes the free oscillation of the arm that can keep tuning fork for to interrelate with the magnet that is positioned on arm.These free oscillations are common vibrations of nature.Such oscillator is to have reduced vibration to interrupt with respect to an advantage of prior art.The weak interaction of magnet makes particularly and can produce free escapement.
Be noted that these resonators did not have main innovation, the conviction that this can cause this field can't innovate in known in fact about 40 years.Thereby, applicant's advantage is to have designed according to oscillator of the present invention, opposite with all expections, the amplitude that wherein gets involved the magnetic interaction between tuning fork and escape wheel is significantly greater than getting involved in the mechanism based on the magnetic resistance principle, mechanism's reasoning of magnetic resistance principle is for to see being obviously disadvantageous from the angle of tautochronism, this has increased the amplitude that compensates by the described interaction of using the short period, namely the free escapement opposite with known mechanisms, produce more favourable generally result.
And the mechanical resonator with magnetic escapement according to the present invention has compares conventional free escapement such as Switzerland's anchor escapement structure or the more simple structure of detent escapement and assembly.The free escapement of conventional mechanical is explained aobvious more complicated with regard to the adjusting of the relative position of its parts.
And, both do not had ratchet system there is no the Mechanical Contact system according to resonator of the present invention yet.The durability of this resonator thereby greater than the conventional mechanical resonator.
Preferably, escape wheel supports 2n permanent magnet, and n equals 1 at least, preferably is less than or equal to 40.These magnets advantageously near escape wheel the periphery or distribute equably at its periphery, to guarantee the latter's rules rotating.
According to preferred embodiment, two adjacent magnets of escape wheel relative to each other arrange, with when escape wheel rotates about himself to the magnet of tuning fork or present the polarity of putting upside down respectively for each magnet of tuning fork.
Due to these characteristics, the arm of tuning fork and the corresponding sports of escape wheel are synchronous, make when the arm of tuning fork moves away from escape wheel, and the latter has the magnet that causes with respect to the repulsion of the magnet of arm, and when the near escape wheel of arm rest, the latter has the magnet that causes with respect to the attraction of the magnet of arm.
Advantageously, escape wheel can be arranged between the arm of tuning fork, and the second arm preferably is equipped with the second permanent magnet that limits the second magnetic field.In the case, the magnet of tuning fork is preferably relative about escape wheel diameter ground.And, the magnet of escape wheel advantageously be arranged so that in the case they by presenting magnetic orientation in couples diameter relatively so that they have interaction with the magnet same nature of tuning fork.
Make with respect to this layout of magnet and can guarantee tuning fork according to its first vibration mode vibration, namely two arm moves away from each other simultaneously with mobile near each other simultaneously.
And, the invention still further relates to a kind of clockwork movement that is used for mechanical watch that comprises the resonator with These characteristics, and the clock that is equipped with this clockwork movement.
According to a variant embodiment, escape wheel can be located in the arm outside of tuning fork.
In all cases, can provide and have identical or different oscillation frequency, have its respective diameters and/or its several escape wheels of rotational speed separately, to satisfy different demands.
According to a variant embodiment as an illustration, can be provided as that the first arm that comprises with tuning fork interrelates so that with the first escape wheel of the first rotational speed rotation according to mechanism of the present invention, and interrelate with another arm of tuning fork so that with the second escape wheel of the second rotational speed rotation.In the case, escape wheel can be used for showing that the element of current time interrelate, and another can be used for showing that the element of blink interrelates, obviously by means of the function of timing type.
Description of drawings
The other features and advantages of the invention will be clearer after reading the detailed description of preferred embodiment that provides as non-restrictive example with reference to the accompanying drawings, and wherein:
-Fig. 1 represents that the mechanical resonator with magnetic escapement is in the first simplification front elevation of constructing, and comprises the escape wheel between the arm that is positioned over the U-shaped tuning fork;
The resonator of-Fig. 2 presentation graphs 1 is in the simplification front elevation of the second structure;
The resonator of-Fig. 3 presentation graphs 1 is in the simplification front elevation of the 3rd structure;
-Fig. 4 represents that the resonator according to variant embodiment is in the simplification front elevation of the first structure, and wherein resonator comprises two escape wheels of the arm outside that is positioned tuning fork;
The resonator of-Fig. 5 presentation graphs 4 is in the simplification front elevation of the second structure;
-Fig. 6 represents to illustrate the simplification front elevation of alternative method that tuning fork is attached to the framework of clockwork movement;
-Fig. 7 a and 7b represent to simplify view according to the perspectivity of the resonator of the second variant embodiment, and
-Fig. 8 a and 8b represent to simplify view according to the perspectivity of the resonator of the 3rd variant embodiment.
Embodiment
Fig. 1 to 3 illustrates in the mode of signal and simplification the operation that mechanical according to the preferred embodiment of the invention tuning fork resonator is in respectively first, second, and third structure.
Resonator comprises U-shaped tuning fork 1, and it has a pair of arm 2,3, and each arm supports near the permanent magnet 4,5 of its free end to limit the first and second magnetic fields.
Each magnet is positioned on its arm, and the polarity arrangement of arm is in being approximately perpendicular to arm longitudinally on direction.And magnet 4,5 that is to say reciprocally to present relative polarity in this rough alignment and orientation in an identical manner.
Advantageously, escape wheel 6 is dynamically to be connected to the power source (not shown) by means of the conventional clock organization gear with predetermined tooth ratio, and its enforcement will have no difficulty to those skilled in the art.Especially, escape wheel preferably support arrangement be the escapement pinion wheel that is meshed with the first movable body of clockwork gear train.By this dynamic connection, escape wheel is kept and is tended to make it in the upper permanent power of rotating of preset rotating direction (clockwise direction in Fig. 2 and 3).
Be noted that as example, for the tuning fork with 25 millimeters long of 360 hertz of vibrations, the vibration amplitude of its arm is 5% the magnitude of 1 millimeter.
Due to the relative structure of the magnet of escape wheel, each magnet of tuning fork is kept attraction and repulsion alternately with respect to escape wheel.
Particularly, because permanent power is kept by the power source of corresponding clock, escape wheel 6 can freely rotate on the dextrorotation veer about himself.
This is so, is actually zero structure by the wherein magnet of Fig. 1 and the interaction between those tuning forks and begins, and it rotates to the structure shown in Fig. 2.
Tuning fork can advantageously be fastened to the framework of clockwork movement in a usual manner, that is to say, by means of being fastened to framework via its first end and being fastened to the arm of the point in the middle of the base portion 8 that is positioned tuning fork via its other end.In the case, preferably, tuning fork vibrates according to its first vibration mode, that is to say, its arm has accurately relative movement.In other words, two arms 2 and 3 side by side are moved apart and are moved toward each other.
Thereby the structure shown in Fig. 2 is mutually close corresponding to these two arms 2 and 3 at first.Given magnet 4,5 and 61 to 66 relative orientation and position, the arm 2 and 3 of tuning fork are kept towards escape wheel 6 and are attracted, and limit energy and are passed to tuning fork from escape wheel, are used for keeping tuning fork vibration.
Simultaneously, it is come as the magnetic brake on escape wheel by the rotation that the power source applied force of clockwork movement causes tuning fork by slowing down.
The vibration of comparing tuning fork due to the amplitude of the power that is derived from the magnetic interaction between tuning fork and escape wheel is very little, the latter naturally one follow another, and arm 2,3 is out of shape to move away from each other obtaining maximal phase to after close in the opposite direction.
Simultaneously, escape wheel 6 continues it and rotatablely moves, and this carries it into the position of Fig. 3, and arm 2,3 still is in their relative separated position.
In the structure of Fig. 3, magnet in place presents reciprocal polarity relative to one another, this cause at tuning fork arm 2,3 and escape wheel between produce repulsive force.This repels the energy that limits from escape wheel and newly is passed to tuning fork, in order to keep the latter's vibration.
Find from the foregoing, about himself completing a complete rotation, so the gyro frequency of escape wheel equals 1/3 of tuning fork to the escape wheel that supports six permanent magnets in the case in corresponding to six pitches of three complete vibrations of tuning fork.
Usually, escape wheel advances two pitches in each complete duration of oscillation of tuning fork.In other words, the frequency of the pitch of escape wheel is the twice of the vibration frequency of tuning fork, and its gyro frequency is the f/n hertz when it supports 2n permanent magnet, and f is the vibration frequency of tuning fork.
Its result is, the tooth specific energy of the rotational speed of escape wheel and clockwork and demonstration gear train is adjusted according to demand, and no matter the oscillation frequency of tuning fork, especially by changing the quantity of the permanent magnet that is supported by escape wheel.
Naturally, the vibration frequency of tuning fork can be adjusted according to demand in a conventional manner, especially by changing distribution or its material of the weight in its arm.
Advantageously, use for clockwork, can be provided as basically between 2 and 1000 hertz according to the vibration frequency of tuning fork in resonator of the present invention.
Vibration frequency greater than the oscillation frequency of conventional hair-spring balance is passable, for example is used for the application of measuring blink.As example, in order to carry out the timer function that allows the centisecond rank to measure, escape wheel must advance a pitch by every at least centisecond.Therefore, must have the pitch frequency of 100 hertz (or several 100 hertz), this is corresponding to the vibration frequency of the tuning fork of 50 hertz (or several 50 hertz).This operating frequency is unthinkable in using the watch of hair-spring balance type oscillator today, except of short duration and clear definite duration.Should illustrate, the mechanical escapement that moves with this frequency equally also can not produce under no problem, particularly with regard to wearing and tearing.Because escape wheel is the terminal part of mechanical gear system, for the same cause of wearing and tearing and mechanical simplicity, preferably with low gyro frequency operation.This becomes possibility by the magnet that right quantity is provided.As example, if 12 magnets are arranged on escape wheel, tuning fork is with 50 hertz of vibrations, and escape wheel allows other measurement of centisecond level simultaneously to be similar to the gyro frequency rotation of 8.33 hertz that has in known clockwork movement.
Preferably, escape wheel supports 2n permanent magnet, and n equals 1 at least, preferably is less than or equal to 40.These magnets are advantageously near the periphery of escape wheel or distribute equably at the periphery place, to guarantee the rules rotating of escape wheel.Naturally, the diameter of escape wheel can affect the quantity of its included magnet.The magnet of too large quantity do not expect, the actual external phase interaction between escape wheel and tuning fork because it will tend to raise, and infringement is according to the tautochronism of resonator of the present invention.
Naturally, escape wheel 6 can not break away from the outside that is arranged in tuning fork under content of the present invention, in order to interact with the single arm of tuning fork.
The other example of valuable especially application is shown in Figure 4 and 5.
According to this variant embodiment, two escape wheels 40 and 50 interrelate with the first arm 20 and second arm 30 of tuning fork 10 respectively, make and can control two different demonstration gear train (not shown).
For simplicity of illustration, two escape wheels shown in Figure 4 and 5 are identical.They can be used to control the demonstrations respectively of two systems of rolling, and for example one shows that solar time and another show other sidereal time.
The principle of operation of the resonator shown in Figure 4 and 5 will explain no longer in detail, because the embodiment of itself and aforementioned figures is similar.Main Differences with respect to previous embodiment is, the escape wheel that pulse is interrelated by each arm with tuning fork is passed to each arm of tuning fork independently, and their corresponding magnet 41,51 is advantageously arranged towards escape wheel towards the outside.
In the case, as an alternative, do not breaking away under content of the present invention, the escape wheel 40 and 50 that differs from one another also may be provided, especially they support the permanent magnet of varying number.Similarly, the tooth of the demonstration gear train that interrelates from and another escape wheel respectively is different than being so that for example one interrelate with the current time demonstration, and another and clocking capability interrelate.
And Fig. 6 illustrates tuning fork to the attached modification of the framework of clockwork movement.Replacement comes attached tuning fork via the single arm of the intermediate point that is fastened to as mentioned above the tuning fork base portion, is not breaking away under content of the present invention, can be in known manner by means of two attached tuning forks of arm that are connected to tuning fork by two main node.Similarly, magnet can also be positioned over the secondary nodes place.
Fig. 7 a and 7b illustrate the resonator of the second variant embodiment according to the present invention.
In this modification, tuning fork 1 and escape wheel 60 are contained in substantially vertical each other respective planes.
Those skilled in the art can select these two elements any one is positioned in the plane parallel with the general plane of corresponding clockwork movement as required, and another element is vertical with it.With regard to the part that the escapement wheel shape becomes mechanical gear system, it preferably is arranged in the plane identical with the clockwork movement, this means that tuning fork is substantially perpendicular to the general plane of clockwork movement and wrist-watch.The tuning fork of this structure does not also become the theme of commercially available prod so far.
According to the principle of operation of the resonator of this variant embodiment and described above similar, therefore will no longer at length repeat.
Fig. 7 a illustrates the position of escape wheel 60, and wherein the magnet of escape wheel magnet and tuning fork interacts to cause and attracts each other.
Fig. 7 b illustrates the position of escape wheel 60, and wherein the magnet of another magnet of escape wheel and tuning fork interacts to cause mutual repulsion.
Fig. 8 a and 8b illustrate the resonator of the 3rd variant embodiment according to the present invention.
In this modification, tuning fork 100 and escape wheel 60 also are contained in roughly in orthogonal respective planes, but current, when needed, tuning fork is the magnet of support arrangement on an arm only.
According to the principle of operation of the resonator of this variant embodiment and described above similar, therefore repeat no longer in detail.
Fig. 8 a illustrates the position of escape wheel 60, and wherein the magnet of escape wheel magnet and tuning fork interacts to cause and attracts each other.
Fig. 8 b illustrates the position of escape wheel 60, and wherein the magnet of another magnet of escape wheel and tuning fork interacts to cause mutual repulsion.
As has been emphasized, the structure of tuning fork is to make the magnetic interaction of its single arm and escape wheel be enough to keep satisfactorily its vibration.
Usually, for example, tuning fork can be by the silicon, quartz that add silicon dioxide (be obviously for can batch machining) or be had any other material that is suitable for the character that the present invention uses and make, and the composition such as silicon and quartz makes the stable behavior that can guarantee as temperature funtion.
Also to illustrate, " permanent magnet " should not break away from the element that is interpreted as the generation permanent magnetic field under content of the present invention in the case, and no matter its shape how, that is to say, its can by remain on the material part through being subject to processing to have required magnetic, mounting parts in solid slug, even sedimentary deposit, suitable magnetic material form.Obviously can use any known iron oxide, or for example form the sedimentary deposit of samarium-cobalt alloy.
Be noted that the structure according to resonator of the present invention allows it to be integrated into simply existing clockwork bore (caliber), by replacing conventional resonator with hair-spring balance, and need not the main modification of clockwork bore.
Aforementioned description is intended to specific embodiment is described as non-limitative illustration, and the enforcement of some specific features that the invention is not restricted to describe, such as for instance, and the shape that specifically illustrates and describe of tuning fork, escape wheel or permanent magnet.
Those skilled in the art can be applicable to content of the present disclosure under not departing from the scope of the present invention that its real needs and enforcement are different from according to embodiment described here but the mechanical resonator that comprises free magnetism escapement as above without difficulty.
Be noted that, if tuning fork comprises two magnets of aiming at and having the same magnetic orientation, escape wheel comprises 2 (2n+1) individual permanent magnet allowing tuning fork with its principal oscillation mode vibration, and if the corresponding orientation of these two magnets of tuning fork is opposite, escape wheel comprises 4n permanent magnet.
Generally, be noted that the quantity that the invention is not restricted to by the magnet of tuning fork support, or their relevant positions on the arm of tuning fork.Particularly, can only provide in them, one, each arm, perhaps even each arm is more than one, and any level place on arm is vertical needs only the corresponding vibration amplitude enough, and this does not depart from the scope of the present invention.
Claims (10)
1. magnetic resonators that is used for clock, it comprises:
The oscillator of tuning fork type (1), it has the first and second arms (2,3) that roughly take the shape of the letter U and arrange, and at least one of described arm supports at least one first permanent magnet (4,5) that limits the first magnetic field,
Escape wheel (6), it is designed to be arranged as with the first moving body of clockwork gear train and is meshed, and driven by power source of clock to allow it, and be located in the scope of described the first permanent magnet to stand the impact in described the first magnetic field,
It is characterized in that: described escape wheel (6) is freely and supports at least two, at least four permanent magnets (61 to 66) preferably, described permanent magnet is arranged so that the vibration of the described arm of described tuning fork (1) controls the rotational speed of described escape wheel on the one hand, and periodically keep to limit free escapement by the magnetic interaction between the described permanent magnet (61 to 66) of described first permanent magnet (4,5) of described tuning fork and described escape wheel on the other hand.
2. resonator as claimed in claim 1 is characterized in that: described escape wheel (6) supports 2n permanent magnet (61 to 66), and n equals 1 at least, preferably is less than or equal to 40.
3. resonator as claimed in claim 2 is characterized in that: described permanent magnet (61 to 66) distributes equably near the periphery of described escape wheel (6).
4. as any one the described resonator in claims 1 to 3, it is characterized in that: two adjacent permanent magnet (61 to 66) of described escape wheel (6) are relative to each other arranged, with when described escape wheel rotates, present the polarity of putting upside down respectively when in place towards described the first magnet when them for described first magnet (4,5) of described tuning fork (1).
5. as any one described resonator of claim 2 to 4, it is characterized in that: described escape wheel (6) is arranged between the described arm (2,3) of described tuning fork (1).
6. resonator as claimed in claim 5, it is characterized in that: described arm (2,3) another supports the second permanent magnet (4 that limits the second magnetic field, 5), and the described magnet of described escape wheel (6) (61 to 66) is arranged on escape wheel (6), diameter is relative in couples so that they are by presenting magnetic orientation, so that they have the interaction with described magnet (4, the 5) same nature of described tuning fork (1).
7. resonator as claimed in claim 6 is characterized in that: roughly diameter ground is relatively each other with reference to described escape wheel (6) for the described magnet (4,5) of described tuning fork (1).
8. as any one described resonator of aforementioned claim, it is characterized in that: the described permanent magnet (4,5) of described tuning fork (1) is placed near the end of described respective arms (2,3).
9. clockwork movement that is used for mechanical watch, it comprises any one the described resonator as aforementioned claim.
10. mechanical watch, it comprises clockwork movement as claimed in claim 9.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10195101.0 | 2010-12-15 | ||
| EP101951010 | 2010-12-15 | ||
| EP20100195101 EP2466401B1 (en) | 2010-12-15 | 2010-12-15 | Magnetic resonator for mechanical timepiece |
| PCT/EP2011/072941 WO2012080413A1 (en) | 2010-12-15 | 2011-12-15 | Magnetic resonator for a mechanical timepiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103384856A true CN103384856A (en) | 2013-11-06 |
| CN103384856B CN103384856B (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180059281.2A Active CN103384856B (en) | 2010-12-15 | 2011-12-15 | Magnetic resonators for mechanical watch |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8794823B2 (en) |
| EP (1) | EP2466401B1 (en) |
| JP (1) | JP5825539B2 (en) |
| CN (1) | CN103384856B (en) |
| WO (1) | WO2012080413A1 (en) |
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| CN106796411A (en) * | 2014-09-09 | 2017-05-31 | Eta瑞士钟表制造股份有限公司 | Device for adjusting the motion of movement of mechanical clock |
| CN111198490A (en) * | 2018-11-19 | 2020-05-26 | Eta瑞士钟表制造股份有限公司 | Mechanical timepiece with animated display |
| CN112241120A (en) * | 2019-07-19 | 2021-01-19 | 斯沃奇集团研究和开发有限公司 | Timepiece movement including a rotating element provided with a periodically shaped magnetizing structure |
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| CN105849653B (en) * | 2013-12-23 | 2017-11-24 | 尼瓦洛克斯-法尔股份有限公司 | magnetic and/or electrostatic resonator |
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| WO2016037726A1 (en) * | 2014-09-09 | 2016-03-17 | The Swatch Group Research And Development Ltd | Combined resonator having improved isochronism |
| GB2533960A (en) * | 2015-01-09 | 2016-07-13 | Robert Haylett Kevin | An escapement comprising a magnetically braked escape wheel and a tuned mechanical resonator for time keeping in clocks, watches, chronometers and other |
| EP3130966B1 (en) * | 2015-08-11 | 2018-08-01 | ETA SA Manufacture Horlogère Suisse | Mechanical clockwork provided with a motion feedback system |
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| JP7164676B2 (en) * | 2020-08-12 | 2022-11-01 | ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド | Timepiece mechanism with magnetic gears |
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- 2011-12-15 WO PCT/EP2011/072941 patent/WO2012080413A1/en active Application Filing
- 2011-12-15 CN CN201180059281.2A patent/CN103384856B/en active Active
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849652A (en) * | 2013-12-23 | 2016-08-10 | 斯沃奇集团研究和开发有限公司 | Natural escapement |
| CN105849652B (en) * | 2013-12-23 | 2018-04-03 | 斯沃奇集团研究和开发有限公司 | Natural style escapement |
| CN106796411A (en) * | 2014-09-09 | 2017-05-31 | Eta瑞士钟表制造股份有限公司 | Device for adjusting the motion of movement of mechanical clock |
| CN106796411B (en) * | 2014-09-09 | 2019-04-05 | Eta瑞士钟表制造股份有限公司 | For adjusting the device of the movement of movement of mechanical clock |
| CN111198490A (en) * | 2018-11-19 | 2020-05-26 | Eta瑞士钟表制造股份有限公司 | Mechanical timepiece with animated display |
| CN111198490B (en) * | 2018-11-19 | 2021-08-27 | Eta瑞士钟表制造股份有限公司 | Mechanical timepiece with animated display |
| CN112241120A (en) * | 2019-07-19 | 2021-01-19 | 斯沃奇集团研究和开发有限公司 | Timepiece movement including a rotating element provided with a periodically shaped magnetizing structure |
| CN112241120B (en) * | 2019-07-19 | 2021-12-24 | 斯沃奇集团研究和开发有限公司 | Timepiece movement including a rotating element provided with a periodically shaped magnetizing structure |
| US11822294B2 (en) | 2019-07-19 | 2023-11-21 | The Swatch Group Research And Development Ltd | Timepiece movement comprising a rotating element provided with a magnetized structure having a periodic configuration |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5825539B2 (en) | 2015-12-02 |
| EP2466401B1 (en) | 2013-08-14 |
| CN103384856B (en) | 2016-08-10 |
| US8794823B2 (en) | 2014-08-05 |
| US20130279302A1 (en) | 2013-10-24 |
| EP2466401A1 (en) | 2012-06-20 |
| WO2012080413A1 (en) | 2012-06-21 |
| JP2013545996A (en) | 2013-12-26 |
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